1. Division of Infectious Diseases, Hospital of Lugano, Lugano, Switzerland.
2. Basel Institute for Clinical Epidemiology, University Hospital of Basel, Basel, Switzerland.
3. Institute for Lipoprotein Metabolism, Munich, Germany.
4. Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zurich, Zurich, Switzerland.
5. Zentrum für Infektionskrankheiten, Klinik im Park, Zurich, Switzerland.
6. Division of Infectious Diseases, University Hospital of Geneva, Geneva, Switzerland.
7. Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital of St. Gallen, St. Gallen, Switzerland.
8. Division of Infectious Diseases, University Hospital of Bern, Bern, Switzerland.
9. Division of Infectious Diseases, University Hospital of Lausanne, Lausanne, Switzerland.
10. Division of Clinical Pharmacology-Laboratory, University Hospital of Lausanne, Lausanne, Switzerland.